#include <STC15F2K60S2.H>
#include <STRING.H>

void system_int()
{
	P0 = 0Xff;
	P2 = P2&0X1F | 0X80;
	P2 &= 0X1F;
	

	P0 = 0X00;
	P2 = P2&0X1F | 0XA0;
	P2 &= 0X1F;


}